Clean-out for soil-pipes.



No. 838,642. PATENTED DEC. 18, 1906.

J. J. PHBLAN'. CLEAN OUT FOR SOIL PIPES.

APPLICATION FILED APILE. 1995.

W 'L'L'T'LEEEEE UNITED sTATns PATENT onnion.

CLEAN-OUT FOR SOIL-PIPES.

Specification of Letters Patent.

Patented Dec. 18, 1906.

Application filed Ap l 8. 1905. Serial No. 254,511.

To all 1071 0772 it may concern:

Be it known that 1, JOHN J. PHELAN, of Vorcester, in the county oforcester and State of Massachusetts, have invented certain new anduseful Improvements inClean- Outs for Soil-Pipes, of which the followingis a specification.

Figure 1 represents a central longitudinal section through a soil-pipefitting with my improved clean-out applied thereto. Fi 2 is a transversesection through said clean-out, taken at the point indicated by line a,Fig. 1. Fig. 3 is a central longitudinal section through said clean-outand a transverse section through the pipe to which it is applied, takenat the point indicated by line b, Fig. 1. Figs. l and 5 are a side andplan view, respectively, of an internally-threaded ring employed in theconstruction of my said improved cleanout. Fig. 6 represents a centralsection through the various parts of the clean-out, similar to thesection shown in Fig. 1, with temporary screw-plug fitted therein toconfine the molten metal within proper limits in the operation ofpouring to produce the desired lead seal and seat for the usualpermanent screw-plug, as will be hereinafter more fully described. Figs.7 and 8 are a plan and side view, respectively, of a cup used in thecleanout, as and for the purpose also hereinafter described; and Fig. 9shows a side view of a modified construction of the internally threadedring previously referred to.

My invention relates principally to cleanout fittings for soil-pipesemployed for sewerage and drainage systems.

The object thereof is to provide a clean-cut of simple inexpensiveconstruction, whereby a tight fitting may be produced without the u e ofleather, rubber, or other similar pack ings.

Said invention consists in combining with the clean-out hub, having aninwardlyfiaring annular recess larger at the inner than the outer end,also having an annular beveled rim extending into said recess around andnext to the central opening of the hub, an internally-threaded ringfitted longitudinally in said recess of the hub ust outside of said annular beveled rim and having openings through its inner end at intervalsaround its circumference, an exteriorly-threaded plug fitted in saidlaterally-threaded ring, the seat for said plug formed by pouring moltenmetal into the device, which also forms the packing therefor, and a cupfitted in the central opening of the hub, having an open outer end and aclosed inner end, the latter conforming to the shape of the interior ofthe pipe, as will be hereinafter more fully set forth.

To enable others to better understand the nature and purpose of myinvention, 1 will now proceed to describe it more in detail, withreference to the accompanying drawings.

In said drawings, Arepresents a soil-pipe fitting with my improvedclean-out B formed thereon, said fitting being shown calked to sectionsof pipesC D at each. end. Said cleanout is constructed in the followingmanner: The hub 0 thereof is provided with a recess (1, havinginwardly-flaring sides 6, or, in other words, made larger at the innerthan the outer end, the purpose of which will be hereinafter described.Upon said hub and projecting into said recess is also formed an annularrim f next to the central opening g of the hub, said rim being beveledon its outer edge for the purpose also hereinafter described. Justoutside of said rimf is fitted in recess 61 a ring 71 having internalthreads it formed at or near its outer end and provided with a series ofopenings 7L2 at or near its inner end around its circumference. A plug71, having internal threads, is fitted in the internally-threaded ringit. Said plug when screwed into position fits against a softmetal seatj, preferably lead, formed by pouring molten metal into the recess d atthe points indicated by the arrows in Fig. 6, which molten metal,passing through the openings ft? in the ring it, fills the annularchamber 7c inside of said ring between the rim f and inner side of thescrew-plug i, thus not only forming said seat j, but also forming thelead packing Z around the internally-threaded ring it. In forming saidseat and packing a special temporary screw-plug m (see Fig. 6) isemployed, having a central core m extending .into the central opening gof the hub to keep the metal from flowing into said central opening,said screw-plug m, aside from its core m, being substantially like theusual permanent screw-plug t' first described.

After the molten metal has been poured to form the seat and packing asaforesaid and said metal has hardened by cooling the temporaryscrew-plug is removed, thereby forming the clean-out ready to receivethe cup at and usual screw-plug i. As will be observed by reference tothe drawings, the rim f being beveled upon the outside next to the ringh permits the metal to flow freely from the outer recess of the hub intothe annular chamber 76, which forms the seat of the clean-out. The cup nis made to fit the central opening of the hub. It is open at its outerend and closed at its inner end, said inner end being shaped to conformto the shape of the opening in the pipe, as is shown in the drawings.The outer open end of said cup is provided with an external annular rimor flange 0, which fits over the inner edge of seat j, and is therebyheld from inward longitudi nal displacement, the screw-plug i whenfitted in position serving to hold it in the opposite direction. It isessential that the cup be held from turning in order to keep it inproper position in relation to the opening in the pipe. This may inpractice be done in various ways, and I therefore do not limit myself toany special way. In this instance I accomplish said result by formingears 2) p on opposite sides of the cup, which fit incorrespondingly-shaped slots formed in the hub and seat of the cleanout,as is best shown in Fig. 2. The inner edge of the ring h may beperforated with openings of various shapes by segment-openings 7L2, asis shown in Fig. 4, circular openings 1, as shown in Fig. 9, or anyother desired shapes adapted for the purpose.

By making the recess (Z in the hub with inwardly-flaring sides, as shownand described, it is obvious that the soft-metal packing may be heldsecurely in place from being forced out by the pressure exerted inscrewing the plug i in position against its seat. In fact, the greaterthe pressure exerted the more firmly will the packing be held bypressure against said beveled sides, this feature of my invention alsoby said outward pressure serving to make tighter sealed joints betweenthe parts. Since it is thought that said feature of making the sides ofthe recess in the hub flaring inward is new in piping for the purposedescribed, I reserve the right to pro tection thereon in connection withany pipejoint where soft-metal or other similar packing is used.

My improved clean-out is designed for use not only in a straight line ofpiping, as is shown in the drawings, but also for end clean-outs onstraight runs, Y branches, or any points where such a clean-out isdesirable. I prefer to use the cup it; but since it is not an essentialfeature to my invention I reserve the right to use the same or not, asdesired.

The feature of making the interior sides of the hub flaring inward, asdescribed, is of special importance for the reason stated of insuringthe retention of the packing from displacement and thereby, also,insurin a permanent tight joint. I believe said feature to be new insoil-pipe fittings, and I therefore reserve the right to apply the sameto other pipe-fittings than clean-outs.

Having now described my invention, what I claim therein as new, anddesire to secure by Letters Patent, is

1. A clean-out for piping, comprising the hub, having aninwardly-flaring, annular recess, larger at the inner than the outerend, also having an annular beveled rim extending into said recessaround and next to the central opening of the hub, in combination withan internally-threaded ring, fitted longitudinally in the recess of thehub, just outside of said annular beveled rim, and having a series ofopenings through its inner end, an externally-threaded plug fitted insaid internally-threaded ring, and the soft-metal seat and packingformed by pouring molten metal into the device, substantially as and forthe purpose set forth.

2. A clean-out for piping, comprising the hub, having aninwardly-flaring, annular recess, largerat the inner than the outer end,also having an annular beveled rim extending into said recess around andnext to the central opening of the hub, in combination with aninternally-threaded ring, fitted longitudinally in the recess of the hubjust out side of said annular beveled rim, and having a series ofopenings through its inner end, an externally-threaded plug, fitted insaid internally-threaded ring, the soft-metal seat and packing formed bypouring molten metal into the device, and the cup fitted in the centralopening of the clean-out, having a closed inner end corresponding inshape to the interior of the pipe, and having means for preventing itfrom turning, substantially as and for the purpose set forth.

In testimony whereof I have afiixed my signature in presence of twowitnesses.

JOHN J. PHELAN'.

